“He is hospitalized and no one else was injured. His surname is Jiang, 26, from Inner Mongolia. Case is under further investigation,” the statement said.

There was no mention of the US Embassy in the police statement. Most mentions of the explosion have been tightly censored and removed from China’s social media site Weibo, including a large number of personal accounts.

Speaking during his daily press conference, Foreign Ministry Spokesman Geng Shuang said the explosion was an “isolated security incident.” “Chinese police have dealt with it in a timely and proper manner,” he told journalists.

The US Embassy in Beijing is one of the most secure in the world, with state of the art technology and a heavy security presence.